News about the CNMNC and/or updated items on the CNMNC web site

12 November 2018An up-date (November 2018) to the IMA list
of minerals, prepared by Professor Marco Pasero, has been loaded on the
website. Go to the IMA list of minerals page

01 October 2018A revised checklist for new-mineral proposals was uploaded. Go to the ”A new mineral?” page.

19 May 2017An approved report on the nomenclature of
the perovskite supergroup. This publication can be viewed on the IMA
reports page of the web site (PDF Format).

20 July 2015An approved report on the nomenclature
of the tobermorite supergroup.This publication can be viewed on the IMA
reports page of the web site (PDF Format).

11 May 2015An approved report on the
nomenclature on barylite polytypes. This publication can be viewed on
the IMA reports page of the web site (PDF Format).

17 February 2015An approved report on the
nomenclature of the mayenitesupergroup.This publication can be viewed
on the IMA reportspage of the web site (PDF Format).

29 January 2015An approved report on the
nomenclature of the dumortierite supergroup: holtite and dumortierite
groups This publication can be viewed on the IMA reports page of the
web site (PDF Format).

3 December 2013Dr Chris
Stanley (Natural History Museum, London) has up-dated the Quantitative
Data File for reflectance values of minerals (November 2013). The file
can be downloaded can now be downloaded using the link Quantitative Data File.

He has put together an easily searchable compilation of the COM wavelengths which he is distributing for free.

There are four sheets in the Excel database. Sheet 1 is the principle
searchable database with more than 1000 datasets.Column A is a
hyperlink to Mindat. Columns B,C,D,E,F will be hyperlinks to images in
a later edition. Columns G,H,I,J are the COM data (basically you can
take your data for unknown mineral at 546 nm, then using the other
wavelengths to narrow down your search). Column K is the mineral name
(conforming to IMA nomenclature). Column L is the chemical formula
(mostly using the latest IMA list). Column M is the reference. Sheet 2
is an explanation of how to use the database. Sheet 3 is a listing of
soon to be published minerals and some missing datasets. Sheet 4 is the
same as for sheet 1 but in alphabetical order.

12 April 2013The program AMPH 2012, which gives the correct name to amphibole compositions after the IMA report (Hawthorne et al. (2012) American Mineralogist, 97, 2031-2048) can now be downloaded at http://www_crystal.unipv.it/labcris/AMPH2012.zip

2 April 2013An approved report on the nomenclature of the garnet supergroup
This publication can be viewed on the IMA reports page of the web site (PDF Format)

18 February 2013An approved report on the use of suffixes and prefixes in mineral nomenclature
An approved report on clarification of status of species in the pyrochlore supergroup
These publications can be viewed on the IMA reports page of the web site (PDF Format)

21 November 2012An approved report on the nomenclature of the hydrotalcite supergroup
An approved report on the nomenclature of the amphibole supergroup
These publications can be viewed on the IMA reports page of the web site (PDF Format).

19 October 2012
List of unnamed minerals
Jeffrey de Fourestier (fu_xiaotu@yahoo.ca) has assumed the role of looking after updates to the list of unnamed minerals